High-luminous-effect rare earth ion terbium europium double-doped bismuth phosphate red fluorescent powder used for plant growth, and preparation method thereof

• Main Authors: LI JINYANG, LIU DINGHAN, ZUO HAOQIANG, MA SUIYAN, ZHAO MINZHU, WANG KAI, GAO FANG, LIU YUN
• Format: Patent
• Language: Chinese; English
• Published: 28.11.2017
• Subjects: ADHESIVES; AGRICULTURE; ANIMAL HUSBANDRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; DYES; FISHING; FORESTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HORTICULTURE; HUMAN NECESSITIES; HUNTING; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRAPPING; WATERING

The invention relates to a high-luminous-effect rare earth ion terbium europium double-doped bismuth phosphate red fluorescent powder used for plant growth, and a preparation method thereof. The preparation method comprises following steps: Bi(NO ) .5H O, Tb(NO ) , and Eu(NO ) are dissolved in an acid solution so as to obtain a solution A; a NH4H2PO4 solution is added into the solution A dropwise at a ratio of the molar total amount of Bi3+, Tb3+, and Eu3+ to the molar amount of PO <-> of 1:1, and uniform stirring is carried out so as to obtain a precursor solution; the pH value of the precursor solution is adjusted to 1 to 3; the precursor solution is subjected to hydro-thermal reaction so as to obtain a precipitate; the precipitate is collected, is washed, and is dried so as to obtain the high-luminous-effect rare earth ion terbium europium double-doped bismuth phosphate red fluorescent powder used for plant growth. According to the preparation method, luminous effect is improved via adjusting the different